Ventilator for metallic sash frames



F. HAUSER.

VENTILATOR FOR METALLIC SASH FRAMES.

APPLICATION HLED APR.5, 1920.

Patented June 20, 1922.

FIE I RR my u WA N r UNITED STATES FREDERICK HAUSER, 015 SAN FRANCISCO, CALIFORNIA.

VENTILATOR FOR METALLIC SASH FRAMES.

Application filed April 5,

To all whom it my concern:

Be it known that I, FREDERICK HAUSER, a citizen of the United States, residing at San Francisco, in the county of San Franci'sco and State of California, have invented new and useful Improvements in Ventilators for Metallic Sash Frames, of which the following is a specification.

The primary object of this inventionis to provide a relatively simple and inexpensive ventilator which may be readily and easily attached to metallic sash frames of the several types now in general use and which will provide for screening of the ventilator opening without interfering with the operation of the ventilator.

The ventilator of my invention operates on the outside only of the sash frame and permits the use of a screen across the back of the ventilator opening in the sash frame.

The invention possesses other advantages and features, some of which, with the foregoing will be set forth at length in the following description where I shall outline in full, that form of the invention which I have selected for illustration in the drawings accompanying and forming a part of the present specification. Tn said drawings T have shown one form of the construction of my invention but it is to be understood that I do not limit myself to such form, since the invention as expressed in the claims may be embodied in a plurality of forms.

Figure 1 represents a fragmentary perspective view of a sash frame showing my improved ventilator attached thereto and in closed position.

Figure 2 is a vertical sectional view taken through the ventilator when open, showing the closed position in dotted lines.

Figure 3 is a fragmentary side elevation of the ventilator.

Figure l is a cross sectional view taken on line 44 of Figure 2.

' Figure 5 is a sectional view taken on line 55 of Figure 2 showing the links or bars housed in the tracks, and bars when the ventilator is closed.

Referring particularly to the drawing 1 designates a metallic sash frame of the type now in general use having glass llghts or panes 2 therein and provided with an opening 3 in which the ventilator 4: of my invention is mounted.

The present embodiment of my ventilator Specification of Letters Patent.

Patented June 20, 1922.

1920. Serial No. 371,182.

comprises a rectilinear metallic frame made up of side bars 5 and top and bottom bars such as screw 9, channeled sheet metal bars 10 and secured to straps 11 held by screws 12 in the upper ends of the channels are trunnions 13 carrying rollers 14:. The rollers 14 ride in channeled tracks 15 preferably made of sheet metal and secured by screws 16 within the opening 3 and t0 the vertical sides of said opening. The flange 17 of each of the tracks is inwardly flanged as at 18 to retain the rollers in the tracks, said rollers being arranged to ride upon the opposed flanges 17 and 19 as shown in Figure 4. A reinforcing strip 20 of strap metal is secured by the screws 16 in each track 15. The flanges 18 are adapted toengage similar flanges 22 on the bars 10. The flanges 19 are wider than the flanges 17 and inwardly offset as at 23 so as to overlie the flanges 24 of the bars 10. This construction provides a tight weather proof joint between the ventilator and sash frame when the ventilator is closed. A wire screen 25 is secured by metal strips 26 and screws 27 to the backs of the flanges 19 and extends across the back of the opening 3 in the sash frame 1.

The ventilator fulcrums on bars 28 pivoted at their outer ends as at 29 to and within the bars 10 at points between the center of the bars and their upper ends. The other ends of the bars are pivoted as at 30 to and within the channeled tracks 15 near the lower ends of the tracks.

Thus the bars 28 act as links in that they are pivoted at both ends and guide the window or ventilator in its opening and closing movements. This with the upper end of the ventilator sliding by means of the rollers le-in the tracks 15 permits of opening the ventilator to any extent desired and the closing of the ventilator without moving the ventilator through the opening 3. The bars 28 act to support the ventilator in open position as shown in Figures 2 and 3.

The upper edges of the ventilator rest in achanneled, preferably sheet metal bar 31 secured by suitable fastenings' to the upper side of the opening 3. This bar 31 on one side has an angularly ofi'set flange 32 which ion overhangs the outer upper side of the ventilator when closed to prevent rain, dust, etc., from assing between the ventilator and opening 3.

A suitable weather strip 33 is secured to the lower side of the opening 3 and closely contacts with the ventilator when the latter is closed so as to provide weatherproof seal at this point.

When the ventilator is closed the links or bars 28 are housed within and between the tracks 15 and bars 10 so as to be concealed and as the flanges 18 and 22 abut so as to provide a tight weather proof seal.

It will thus be seen that I may use an ordinary ventilator and by adding the tracks 15, bars 10, links 28 with their associated parts, to the sash and ventilator frame, readily provide the ventilator of my invention to the present day styles of metallic sash frames without making any change in the construction of the metallic sash frame and ventilator. And by this arrangement I may also screen the ventilator opening.

I claim 1. The combination with a metallic sash frame having a ventilator opening therein and a ventilator, of channeled tracks secured to the vertical sides of the openings rollers carried on the upper ends of the sides of-the ventilator and slidably in said tracks, channeled bars secured to opposite sides of the ventilator flanges on the tracks and bars adapted to engage one another when the ventilator is closed and links pivoted within and to the lowest portions of the tracks and to and within the intermediate portions of bars, said bars and tracks enclosing the links when the ventilator is closed.

2. The combination with a metallic sash frame having a ventilator opening therein and a ventilator, of channeled tracks secured to the vertical sides of the openings, rollers carried on the upper ends of the sides of the ventilator and slidably in said tracks, channeled bars secured to opposite sides of the ventilator flanges on the tracks and bars adapted to engage one another when the ventilator is closed and links pivoted within and to the lower portions of the tracks and to and within the intermediate portions of bars, said bars and tracks enclosing the links when the ventilator is closed, and a screen secured to the back of the sash frame and extending across said opening.

3. The combination with a metallic sash frame having a ventilator opening therein and a ventilator, of channeled tracks secured to the vertical sides of the openings, rollers carried on the upper ends of the sides of the ventilator and slidably in said tracks, channeled bars secured to opposite sides of the ventilator flanges on the tracks and bars adapted to engage one another when the ventilator is closed and links pivoted within and to the lower portions of the tracks and to and within the intermediateportions of bars, said bars and tracks enclosing the links when the ventilator is closed, the inner sides of the channeled tracks extending over the inner sides of the channeled bars when the ventilator is closed.

FREDERICK HAUSER. 

